STIGQter: STIG Summary: Red Hat Enterprise Linux 8 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

RHEL 8 must be able to initiate directly a session lock for all connection types using smartcard when the smartcard is removed.

DISA Rule

SV-230351r627750_rule

Vulnerability Number

V-230351

Group Title

SRG-OS-000028-GPOS-00009

Rule Version

RHEL-08-020050

Severity

CAT II

CCI(s)

• CCI-000056 - The information system retains the session lock until the user reestablishes access using established identification and authentication procedures.

Weight

10

Fix Recommendation

Configure the operating system to enable a user's session lock until that user re-establishes access using established identification and authentication procedures.

Select/Create an authselect profile and incorporate the "with-smartcard-lock-on-removal" feature with the following example:

$ sudo authselect select sssd with-smartcard with-smartcard-lock-on-removal

Alternatively, the dconf settings can be edited in the /etc/dconf/db/* location.

Edit or add the "[org/gnome/settings-daemon/peripherals/smartcard]" section of the database file and add or update the following lines:

removal-action='lock-screen'

Update the system databases:

$ sudo dconf update

Check Contents

Verify the operating system enables a user's session lock until that user re-establishes access using established identification and authentication procedures with the following command:

$ sudo grep -R removal-action /etc/dconf/db/*

/etc/dconf/db/distro.d/20-authselect:removal-action='lock-screen'

If the "removal-action='lock-screen'" setting is missing or commented out from the dconf database files, this is a finding.

Vulnerability Number

V-230351

Documentable

False

Rule Version

RHEL-08-020050

Severity Override Guidance

Verify the operating system enables a user's session lock until that user re-establishes access using established identification and authentication procedures with the following command:

$ sudo grep -R removal-action /etc/dconf/db/*

/etc/dconf/db/distro.d/20-authselect:removal-action='lock-screen'

If the "removal-action='lock-screen'" setting is missing or commented out from the dconf database files, this is a finding.

Check Content Reference

M

Target Key

2921

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